Answer: 4
Step-by-step explanation:
The power of the brain
<span>it all looks confusing when we try to juggle with all those numbers in the head. The problem can be solved systematically by constructing a contingency table.
</span>role/gender B G total
speaking...... 4 4 8
<span> silent............ 4 8 12
total............. 8 12 20
</span>Probability of a child having a speaking part is therefore
(4+4)/20=8/20=2/5
a. 2/5
Answer:
tanx + cotx = 
Step-by-step explanation:
<u><em>Explanation</em></u>
Take R.H.S = 
= 
= 
= 
= tanx + cotx
tanx + cotx = 
Maybe D ??
Step by step explanation
Answer:
i think it is A because that seems like the one making the most sense
Step-by-step explanation: